Composition for cementing or joining materials or articles.



JOHN THOMAS NORMAN, OF ST. LIZIER, HENLEY -UPON-THAMES, ENGLAND.

COMPOSITION FOR CEMENTING OR JOINING MATERIALS OR ARTICLES.

No Drawing.

To all whom 'it may concern:

Be it known that 1, JOHN T nonas Non- MAN, a subject of the King of Great Britain, residing at St. Lizier, Henley-upon-Thames, in the county of Oxford, England, have in vented certain new anduseful Improve ments in Composition for .Cementing or Joining Materials or Articles, of which the following is a specification.

This invention relates to an improved quick setting composition applicable for use in holding or cementing together pieces of material such as porcelain, earthenware, marble, lass, metal, Wood and other suh-' stances moles made therefrom.

'A composition adapted to effect the purposes above mentioned and compounded according to the present invention is composed of s linmlsilicate, china clay, barium sulfate and'water in suitable proportions to render the mass of the consistency of thick cream; a mucilaginous agent. in suliicient quantity is desirable in order to maintain the mixture iira state of homogeneity, but not to add to its adhesive property.

For the purpose of .the present invention, the china clay and heavy spar may be employed either in a raw or a calcined eondi tion and may be mixed with sodium silicate and water in such proportions as will produce a mixture of thick cream-like consistency. It is found that this mixture is liable to separate out into its constituents owing to the different specific gravities of the latter and thus the homogeneity of the composition as well as its elticiency as a holding or cementing medium impaired. A mncilaginous agent. is therefore added in just sufficient quantity to prevent such separation and to maintain the homogeneity ofthe composition. Such agent may be a vegetable gum such as tragacanth, or aluminium h drate may serve the same purpose. I he sodium silicate may be used either in a. liquid or semi-solid state, and such of the other. ingredients as may require to be ground are reduced to a fine state of subdivision and mixed, together with the water and the sodium silicate by means of an appropriate contrivance.

As the resultant cream-like composit1on Specification of Letters Patent.

Application filed July 11, 1908.

Patented Feb. 15, 1910.

Serial No. 443,091.

hardens (in-exposure to air, it is therefore necessary to store it in'such a way that the air cannot have access to it. This can readily be elfected by storing the composition in collapsible tubes or similar receptacles so that portions of the said composition can be forced out as required, without permitting the remainder to be exposed to the air.

The materials and the proportions thereof which have yielded satisfactory results in practice are as follows:'-China cla 20 parts, barium sulfate (heavv-sparl Ill parts, sodium silicate :54 parts, ve etable 'mn ra acanti .03 part, water 3 parts.

iese proportions are based on the assumption that the ingredients china clay and barium sulfate are in a dry condition. It will therefore be understood that in the event of these ingredients containing more or less moisture a certain allowance will have to be made in the use of the liquid for effecting the mixture of the ingredients. in this connection it may be stated that sodium silicate of a density of 75 Tweddle is best adapted for the purpose of the present invent'ron.

If desired suitable pigments may be added to the above described mixture to afford a color thereto.

Examiner "Uni'rEostrATEs PATENT OFFICE.

WVhat I claim and desire to secure by Letters Patent of the United States is 1. As a liquid cement for joining mate rials or articles, the combination of the ingredients sodium silicate, china clay, barium sulfate, water and a mucilaginous agent.

'2. As a liquid cement for joining materials or articles, the combination of the in-" gradients sodium silicate 84 parts, china clay 20 parts, barium sulfate 43 parts, water 3 parts, gum tragacanth 0.03 part.

3. As a liquid cement for joiningcmaterials or articles, the combination of sodium 

